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Finding the Fourth Proportional to 73,151.70, 100,948.14 and 40,887.07

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Solution

The fourth proportional to 73,151.70, 100,948.14 and 40,887.07 is: 56,423.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,151.70 : 100,948.14 = 40,887.07 : x
  2. Step 2: Convert to fraction form
    73,151.70/100,948.14 = 40,887.07/x
  3. Step 3: Cross multiply
    73,151.70x = 100,948.14 × 40,887.07
  4. Step 4: Simplify right side
    73,151.70x = 4,127,473,666.55
  5. Step 5: Solve for x
    x = 4,127,473,666.55/73,151.70
  6. Step 6: Final answer
    x = 56,423.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.