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Finding the Fourth Proportional to 98,814.60, 147,851.46 and 58,686.66

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Solution

The fourth proportional to 98,814.60, 147,851.46 and 58,686.66 is: 87,809.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,814.60 : 147,851.46 = 58,686.66 : x
  2. Step 2: Convert to fraction form
    98,814.60/147,851.46 = 58,686.66/x
  3. Step 3: Cross multiply
    98,814.60x = 147,851.46 × 58,686.66
  4. Step 4: Simplify right side
    98,814.60x = 8,676,908,363.52
  5. Step 5: Solve for x
    x = 8,676,908,363.52/98,814.60
  6. Step 6: Final answer
    x = 87,809.98

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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.