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Finding the Fourth Proportional to 113,988.67, 157,299.47 and 62,998.76

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Solution

The fourth proportional to 113,988.67, 157,299.47 and 62,998.76 is: 86,935.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,988.67 : 157,299.47 = 62,998.76 : x
  2. Step 2: Convert to fraction form
    113,988.67/157,299.47 = 62,998.76/x
  3. Step 3: Cross multiply
    113,988.67x = 157,299.47 × 62,998.76
  4. Step 4: Simplify right side
    113,988.67x = 9,909,671,833.54
  5. Step 5: Solve for x
    x = 9,909,671,833.54/113,988.67
  6. Step 6: Final answer
    x = 86,935.59

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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.