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Finding the Fourth Proportional to 142,151.68, 213,038.61 and 62,068.60

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Solution

The fourth proportional to 142,151.68, 213,038.61 and 62,068.60 is: 93,020.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,151.68 : 213,038.61 = 62,068.60 : x
  2. Step 2: Convert to fraction form
    142,151.68/213,038.61 = 62,068.60/x
  3. Step 3: Cross multiply
    142,151.68x = 213,038.61 × 62,068.60
  4. Step 4: Simplify right side
    142,151.68x = 13,223,008,268.65
  5. Step 5: Solve for x
    x = 13,223,008,268.65/142,151.68
  6. Step 6: Final answer
    x = 93,020.42

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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.