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Finding the Fourth Proportional to 178,869.16, 268,233.32 and 64,990.08

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Solution

The fourth proportional to 178,869.16, 268,233.32 and 64,990.08 is: 97,459.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,869.16 : 268,233.32 = 64,990.08 : x
  2. Step 2: Convert to fraction form
    178,869.16/268,233.32 = 64,990.08/x
  3. Step 3: Cross multiply
    178,869.16x = 268,233.32 × 64,990.08
  4. Step 4: Simplify right side
    178,869.16x = 17,432,504,925.47
  5. Step 5: Solve for x
    x = 17,432,504,925.47/178,869.16
  6. Step 6: Final answer
    x = 97,459.53

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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.