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Finding the Fourth Proportional to 378,547.76, 567,821.60 and 98,065.04

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Solution

The fourth proportional to 378,547.76, 567,821.60 and 98,065.04 is: 147,097.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,547.76 : 567,821.60 = 98,065.04 : x
  2. Step 2: Convert to fraction form
    378,547.76/567,821.60 = 98,065.04/x
  3. Step 3: Cross multiply
    378,547.76x = 567,821.60 × 98,065.04
  4. Step 4: Simplify right side
    378,547.76x = 55,683,447,916.86
  5. Step 5: Solve for x
    x = 55,683,447,916.86/378,547.76
  6. Step 6: Final answer
    x = 147,097.55

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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.