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Finding the Fourth Proportional to 98,341.65, 147,793.60 and 91,677.91

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Solution

The fourth proportional to 98,341.65, 147,793.60 and 91,677.91 is: 137,778.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,341.65 : 147,793.60 = 91,677.91 : x
  2. Step 2: Convert to fraction form
    98,341.65/147,793.60 = 91,677.91/x
  3. Step 3: Cross multiply
    98,341.65x = 147,793.60 × 91,677.91
  4. Step 4: Simplify right side
    98,341.65x = 13,549,408,639.45
  5. Step 5: Solve for x
    x = 13,549,408,639.45/98,341.65
  6. Step 6: Final answer
    x = 137,778.94

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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.