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Finding the Fourth Proportional to 73,430.95, 110,159.79 and 48,491.86

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Solution

The fourth proportional to 73,430.95, 110,159.79 and 48,491.86 is: 72,746.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,430.95 : 110,159.79 = 48,491.86 : x
  2. Step 2: Convert to fraction form
    73,430.95/110,159.79 = 48,491.86/x
  3. Step 3: Cross multiply
    73,430.95x = 110,159.79 × 48,491.86
  4. Step 4: Simplify right side
    73,430.95x = 5,341,853,114.31
  5. Step 5: Solve for x
    x = 5,341,853,114.31/73,430.95
  6. Step 6: Final answer
    x = 72,746.62

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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.