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Finding the Fourth Proportional to 159,726.63, 239,681.53 and 64,939.32

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Solution

The fourth proportional to 159,726.63, 239,681.53 and 64,939.32 is: 97,446.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,726.63 : 239,681.53 = 64,939.32 : x
  2. Step 2: Convert to fraction form
    159,726.63/239,681.53 = 64,939.32/x
  3. Step 3: Cross multiply
    159,726.63x = 239,681.53 × 64,939.32
  4. Step 4: Simplify right side
    159,726.63x = 15,564,755,655.93
  5. Step 5: Solve for x
    x = 15,564,755,655.93/159,726.63
  6. Step 6: Final answer
    x = 97,446.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.