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Finding the Fourth Proportional to 145,260,245.40, 217,890,368.10 and 145,260,245.40

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Solution

The fourth proportional to 145,260,245.40, 217,890,368.10 and 145,260,245.40 is: 217,890,368.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,260,245.40 : 217,890,368.10 = 145,260,245.40 : x
  2. Step 2: Convert to fraction form
    145,260,245.40/217,890,368.10 = 145,260,245.40/x
  3. Step 3: Cross multiply
    145,260,245.40x = 217,890,368.10 × 145,260,245.40
  4. Step 4: Simplify right side
    145,260,245.40x = 31,650,808,340,502,332
  5. Step 5: Solve for x
    x = 31,650,808,340,502,332/145,260,245.40
  6. Step 6: Final answer
    x = 217,890,368.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.