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Finding the Fourth Proportional to 88,907.80, 133,465.89 and 70,200.45

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Solution

The fourth proportional to 88,907.80, 133,465.89 and 70,200.45 is: 105,382.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,907.80 : 133,465.89 = 70,200.45 : x
  2. Step 2: Convert to fraction form
    88,907.80/133,465.89 = 70,200.45/x
  3. Step 3: Cross multiply
    88,907.80x = 133,465.89 × 70,200.45
  4. Step 4: Simplify right side
    88,907.80x = 9,369,365,537.65
  5. Step 5: Solve for x
    x = 9,369,365,537.65/88,907.80
  6. Step 6: Final answer
    x = 105,382.94

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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.