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Finding the Fourth Proportional to 73,663.17, 101,655.18 and 40,129.17

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Solution

The fourth proportional to 73,663.17, 101,655.18 and 40,129.17 is: 55,378.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,663.17 : 101,655.18 = 40,129.17 : x
  2. Step 2: Convert to fraction form
    73,663.17/101,655.18 = 40,129.17/x
  3. Step 3: Cross multiply
    73,663.17x = 101,655.18 × 40,129.17
  4. Step 4: Simplify right side
    73,663.17x = 4,079,338,077.34
  5. Step 5: Solve for x
    x = 4,079,338,077.34/73,663.17
  6. Step 6: Final answer
    x = 55,378.26

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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.