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Finding the Fourth Proportional to 245,641.62, 368,526.84 and 77,155.14

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Solution

The fourth proportional to 245,641.62, 368,526.84 and 77,155.14 is: 115,752.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,641.62 : 368,526.84 = 77,155.14 : x
  2. Step 2: Convert to fraction form
    245,641.62/368,526.84 = 77,155.14/x
  3. Step 3: Cross multiply
    245,641.62x = 368,526.84 × 77,155.14
  4. Step 4: Simplify right side
    245,641.62x = 28,433,739,933.96
  5. Step 5: Solve for x
    x = 28,433,739,933.96/245,641.62
  6. Step 6: Final answer
    x = 115,752.94

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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.