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Finding the Fourth Proportional to 145,368.40, 218,052.60 and 113,875.60

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Solution

The fourth proportional to 145,368.40, 218,052.60 and 113,875.60 is: 170,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,368.40 : 218,052.60 = 113,875.60 : x
  2. Step 2: Convert to fraction form
    145,368.40/218,052.60 = 113,875.60/x
  3. Step 3: Cross multiply
    145,368.40x = 218,052.60 × 113,875.60
  4. Step 4: Simplify right side
    145,368.40x = 24,830,870,656.56
  5. Step 5: Solve for x
    x = 24,830,870,656.56/145,368.40
  6. Step 6: Final answer
    x = 170,813.40

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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.