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Finding the Fourth Proportional to 92,952.90, 139,430.88 and 48,666.15

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Solution

The fourth proportional to 92,952.90, 139,430.88 and 48,666.15 is: 73,000.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,952.90 : 139,430.88 = 48,666.15 : x
  2. Step 2: Convert to fraction form
    92,952.90/139,430.88 = 48,666.15/x
  3. Step 3: Cross multiply
    92,952.90x = 139,430.88 × 48,666.15
  4. Step 4: Simplify right side
    92,952.90x = 6,785,564,120.71
  5. Step 5: Solve for x
    x = 6,785,564,120.71/92,952.90
  6. Step 6: Final answer
    x = 73,000.03

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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.