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Finding the Fourth Proportional to 158,358, 218,527.64 and 94,730.96

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Solution

The fourth proportional to 158,358, 218,527.64 and 94,730.96 is: 130,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,358 : 218,527.64 = 94,730.96 : x
  2. Step 2: Convert to fraction form
    158,358/218,527.64 = 94,730.96/x
  3. Step 3: Cross multiply
    158,358x = 218,527.64 × 94,730.96
  4. Step 4: Simplify right side
    158,358x = 20,701,333,123.73
  5. Step 5: Solve for x
    x = 20,701,333,123.73/158,358
  6. Step 6: Final answer
    x = 130,724.90

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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.