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Finding the Fourth Proportional to 153,043.20, 229,564.80 and 103,276.80

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Solution

The fourth proportional to 153,043.20, 229,564.80 and 103,276.80 is: 154,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,043.20 : 229,564.80 = 103,276.80 : x
  2. Step 2: Convert to fraction form
    153,043.20/229,564.80 = 103,276.80/x
  3. Step 3: Cross multiply
    153,043.20x = 229,564.80 × 103,276.80
  4. Step 4: Simplify right side
    153,043.20x = 23,708,717,936.64
  5. Step 5: Solve for x
    x = 23,708,717,936.64/153,043.20
  6. Step 6: Final answer
    x = 154,915.20

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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.