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Finding the Fourth Proportional to 62,290.90, 93,217.65 and 42,607.90

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Solution

The fourth proportional to 62,290.90, 93,217.65 and 42,607.90 is: 63,762.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,290.90 : 93,217.65 = 42,607.90 : x
  2. Step 2: Convert to fraction form
    62,290.90/93,217.65 = 42,607.90/x
  3. Step 3: Cross multiply
    62,290.90x = 93,217.65 × 42,607.90
  4. Step 4: Simplify right side
    62,290.90x = 3,971,808,309.44
  5. Step 5: Solve for x
    x = 3,971,808,309.44/62,290.90
  6. Step 6: Final answer
    x = 63,762.26

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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.