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Finding the Fourth Proportional to 92,031.80, 138,047.70 and 32,869.40

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Solution

The fourth proportional to 92,031.80, 138,047.70 and 32,869.40 is: 49,304.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,031.80 : 138,047.70 = 32,869.40 : x
  2. Step 2: Convert to fraction form
    92,031.80/138,047.70 = 32,869.40/x
  3. Step 3: Cross multiply
    92,031.80x = 138,047.70 × 32,869.40
  4. Step 4: Simplify right side
    92,031.80x = 4,537,545,070.38
  5. Step 5: Solve for x
    x = 4,537,545,070.38/92,031.80
  6. Step 6: Final answer
    x = 49,304.10

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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.