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Finding the Fourth Proportional to 147,907.50, 221,861.25 and 49,411.50

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Solution

The fourth proportional to 147,907.50, 221,861.25 and 49,411.50 is: 74,117.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,907.50 : 221,861.25 = 49,411.50 : x
  2. Step 2: Convert to fraction form
    147,907.50/221,861.25 = 49,411.50/x
  3. Step 3: Cross multiply
    147,907.50x = 221,861.25 × 49,411.50
  4. Step 4: Simplify right side
    147,907.50x = 10,962,497,154.38
  5. Step 5: Solve for x
    x = 10,962,497,154.38/147,907.50
  6. Step 6: Final answer
    x = 74,117.25

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1.5x scale

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.