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Finding the Fourth Proportional to 115,875.79, 173,693.86 and 65,848.16

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Solution

The fourth proportional to 115,875.79, 173,693.86 and 65,848.16 is: 98,704.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,875.79 : 173,693.86 = 65,848.16 : x
  2. Step 2: Convert to fraction form
    115,875.79/173,693.86 = 65,848.16/x
  3. Step 3: Cross multiply
    115,875.79x = 173,693.86 × 65,848.16
  4. Step 4: Simplify right side
    115,875.79x = 11,437,421,353.91
  5. Step 5: Solve for x
    x = 11,437,421,353.91/115,875.79
  6. Step 6: Final answer
    x = 98,704.15

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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.