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Finding the Fourth Proportional to 159,637.80, 220,299.98 and 88,018.95

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Solution

The fourth proportional to 159,637.80, 220,299.98 and 88,018.95 is: 121,466.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,637.80 : 220,299.98 = 88,018.95 : x
  2. Step 2: Convert to fraction form
    159,637.80/220,299.98 = 88,018.95/x
  3. Step 3: Cross multiply
    159,637.80x = 220,299.98 × 88,018.95
  4. Step 4: Simplify right side
    159,637.80x = 19,390,572,484.53
  5. Step 5: Solve for x
    x = 19,390,572,484.53/159,637.80
  6. Step 6: Final answer
    x = 121,466.05

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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.