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Finding the Fourth Proportional to 136,063.64, 187,798.29 and 75,655.46

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Solution

The fourth proportional to 136,063.64, 187,798.29 and 75,655.46 is: 104,421.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,063.64 : 187,798.29 = 75,655.46 : x
  2. Step 2: Convert to fraction form
    136,063.64/187,798.29 = 75,655.46/x
  3. Step 3: Cross multiply
    136,063.64x = 187,798.29 × 75,655.46
  4. Step 4: Simplify right side
    136,063.64x = 14,207,966,017.16
  5. Step 5: Solve for x
    x = 14,207,966,017.16/136,063.64
  6. Step 6: Final answer
    x = 104,421.48

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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.