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Finding the Fourth Proportional to 70,648,694.80, 106,020,281.40 and 32,290,464.40

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Solution

The fourth proportional to 70,648,694.80, 106,020,281.40 and 32,290,464.40 is: 48,457,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,648,694.80 : 106,020,281.40 = 32,290,464.40 : x
  2. Step 2: Convert to fraction form
    70,648,694.80/106,020,281.40 = 32,290,464.40/x
  3. Step 3: Cross multiply
    70,648,694.80x = 106,020,281.40 × 32,290,464.40
  4. Step 4: Simplify right side
    70,648,694.80x = 3,423,444,122,224,682
  5. Step 5: Solve for x
    x = 3,423,444,122,224,682/70,648,694.80
  6. Step 6: Final answer
    x = 48,457,287.60

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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.