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Finding the Fourth Proportional to 92,316.50, 138,489.51 and 39,008.98

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Solution

The fourth proportional to 92,316.50, 138,489.51 and 39,008.98 is: 58,519.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,316.50 : 138,489.51 = 39,008.98 : x
  2. Step 2: Convert to fraction form
    92,316.50/138,489.51 = 39,008.98/x
  3. Step 3: Cross multiply
    92,316.50x = 138,489.51 × 39,008.98
  4. Step 4: Simplify right side
    92,316.50x = 5,402,333,638.31
  5. Step 5: Solve for x
    x = 5,402,333,638.31/92,316.50
  6. Step 6: Final answer
    x = 58,519.70

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1.5x scale

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.