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Finding the Fourth Proportional to 88,907.90, 133,037.85 and 55,643.90

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Solution

The fourth proportional to 88,907.90, 133,037.85 and 55,643.90 is: 83,263.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,907.90 : 133,037.85 = 55,643.90 : x
  2. Step 2: Convert to fraction form
    88,907.90/133,037.85 = 55,643.90/x
  3. Step 3: Cross multiply
    88,907.90x = 133,037.85 × 55,643.90
  4. Step 4: Simplify right side
    88,907.90x = 7,402,744,821.62
  5. Step 5: Solve for x
    x = 7,402,744,821.62/88,907.90
  6. Step 6: Final answer
    x = 83,263.07

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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.