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Finding the Fourth Proportional to 143,999.65, 201,132.95 and 143,999.65

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Solution

The fourth proportional to 143,999.65, 201,132.95 and 143,999.65 is: 201,132.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,999.65 : 201,132.95 = 143,999.65 : x
  2. Step 2: Convert to fraction form
    143,999.65/201,132.95 = 143,999.65/x
  3. Step 3: Cross multiply
    143,999.65x = 201,132.95 × 143,999.65
  4. Step 4: Simplify right side
    143,999.65x = 28,963,074,403.47
  5. Step 5: Solve for x
    x = 28,963,074,403.47/143,999.65
  6. Step 6: Final answer
    x = 201,132.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.