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Finding the Fourth Proportional to 86,702.92, 130,041.10 and 27,530.92

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Solution

The fourth proportional to 86,702.92, 130,041.10 and 27,530.92 is: 41,292.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,702.92 : 130,041.10 = 27,530.92 : x
  2. Step 2: Convert to fraction form
    86,702.92/130,041.10 = 27,530.92/x
  3. Step 3: Cross multiply
    86,702.92x = 130,041.10 × 27,530.92
  4. Step 4: Simplify right side
    86,702.92x = 3,580,151,120.81
  5. Step 5: Solve for x
    x = 3,580,151,120.81/86,702.92
  6. Step 6: Final answer
    x = 41,292.16

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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.