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Finding the Fourth Proportional to 178,041.60, 245,768.40 and 116,811.12

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Solution

The fourth proportional to 178,041.60, 245,768.40 and 116,811.12 is: 161,245.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,041.60 : 245,768.40 = 116,811.12 : x
  2. Step 2: Convert to fraction form
    178,041.60/245,768.40 = 116,811.12/x
  3. Step 3: Cross multiply
    178,041.60x = 245,768.40 × 116,811.12
  4. Step 4: Simplify right side
    178,041.60x = 28,708,482,064.61
  5. Step 5: Solve for x
    x = 28,708,482,064.61/178,041.60
  6. Step 6: Final answer
    x = 161,245.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.