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Finding the Fourth Proportional to 220,841.40, 304,762.59 and 125,349.69

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Solution

The fourth proportional to 220,841.40, 304,762.59 and 125,349.69 is: 172,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,841.40 : 304,762.59 = 125,349.69 : x
  2. Step 2: Convert to fraction form
    220,841.40/304,762.59 = 125,349.69/x
  3. Step 3: Cross multiply
    220,841.40x = 304,762.59 × 125,349.69
  4. Step 4: Simplify right side
    220,841.40x = 38,201,896,180.10
  5. Step 5: Solve for x
    x = 38,201,896,180.10/220,841.40
  6. Step 6: Final answer
    x = 172,983.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.