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Finding the Fourth Proportional to 239,178.84, 358,812.33 and 98,948.40

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Solution

The fourth proportional to 239,178.84, 358,812.33 and 98,948.40 is: 148,440.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,178.84 : 358,812.33 = 98,948.40 : x
  2. Step 2: Convert to fraction form
    239,178.84/358,812.33 = 98,948.40/x
  3. Step 3: Cross multiply
    239,178.84x = 358,812.33 × 98,948.40
  4. Step 4: Simplify right side
    239,178.84x = 35,503,905,953.77
  5. Step 5: Solve for x
    x = 35,503,905,953.77/239,178.84
  6. Step 6: Final answer
    x = 148,440.83

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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.