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Finding the Fourth Proportional to 99,332.82, 137,082.21 and 54,010.74

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Solution

The fourth proportional to 99,332.82, 137,082.21 and 54,010.74 is: 74,536.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,332.82 : 137,082.21 = 54,010.74 : x
  2. Step 2: Convert to fraction form
    99,332.82/137,082.21 = 54,010.74/x
  3. Step 3: Cross multiply
    99,332.82x = 137,082.21 × 54,010.74
  4. Step 4: Simplify right side
    99,332.82x = 7,403,911,602.94
  5. Step 5: Solve for x
    x = 7,403,911,602.94/99,332.82
  6. Step 6: Final answer
    x = 74,536.41

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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.