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Finding the Fourth Proportional to 131,484.66, 197,314.35 and 48,378.66

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Solution

The fourth proportional to 131,484.66, 197,314.35 and 48,378.66 is: 72,600.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,484.66 : 197,314.35 = 48,378.66 : x
  2. Step 2: Convert to fraction form
    131,484.66/197,314.35 = 48,378.66/x
  3. Step 3: Cross multiply
    131,484.66x = 197,314.35 × 48,378.66
  4. Step 4: Simplify right side
    131,484.66x = 9,545,803,851.77
  5. Step 5: Solve for x
    x = 9,545,803,851.77/131,484.66
  6. Step 6: Final answer
    x = 72,600.13

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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.