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Finding the Fourth Proportional to 130,952.63, 180,714.65 and 71,336.63

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Solution

The fourth proportional to 130,952.63, 180,714.65 and 71,336.63 is: 98,444.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,952.63 : 180,714.65 = 71,336.63 : x
  2. Step 2: Convert to fraction form
    130,952.63/180,714.65 = 71,336.63/x
  3. Step 3: Cross multiply
    130,952.63x = 180,714.65 × 71,336.63
  4. Step 4: Simplify right side
    130,952.63x = 12,891,572,862.37
  5. Step 5: Solve for x
    x = 12,891,572,862.37/130,952.63
  6. Step 6: Final answer
    x = 98,444.55

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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.