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Finding the Fourth Proportional to 145,210.59, 217,781.33 and 40,038.03

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Solution

The fourth proportional to 145,210.59, 217,781.33 and 40,038.03 is: 60,047.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,210.59 : 217,781.33 = 40,038.03 : x
  2. Step 2: Convert to fraction form
    145,210.59/217,781.33 = 40,038.03/x
  3. Step 3: Cross multiply
    145,210.59x = 217,781.33 × 40,038.03
  4. Step 4: Simplify right side
    145,210.59x = 8,719,535,223.79
  5. Step 5: Solve for x
    x = 8,719,535,223.79/145,210.59
  6. Step 6: Final answer
    x = 60,047.52

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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.