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Finding the Fourth Proportional to 141,602.64, 212,403.92 and 58,498.80

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Solution

The fourth proportional to 141,602.64, 212,403.92 and 58,498.80 is: 87,748.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,602.64 : 212,403.92 = 58,498.80 : x
  2. Step 2: Convert to fraction form
    141,602.64/212,403.92 = 58,498.80/x
  3. Step 3: Cross multiply
    141,602.64x = 212,403.92 × 58,498.80
  4. Step 4: Simplify right side
    141,602.64x = 12,425,374,435.30
  5. Step 5: Solve for x
    x = 12,425,374,435.30/141,602.64
  6. Step 6: Final answer
    x = 87,748.18

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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.