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Finding the Fourth Proportional to 502,020.02, 753,030.02 and 128,043.02

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Solution

The fourth proportional to 502,020.02, 753,030.02 and 128,043.02 is: 192,064.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,020.02 : 753,030.02 = 128,043.02 : x
  2. Step 2: Convert to fraction form
    502,020.02/753,030.02 = 128,043.02/x
  3. Step 3: Cross multiply
    502,020.02x = 753,030.02 × 128,043.02
  4. Step 4: Simplify right side
    502,020.02x = 96,420,237,911.46
  5. Step 5: Solve for x
    x = 96,420,237,911.46/502,020.02
  6. Step 6: Final answer
    x = 192,064.53

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Similar ratio
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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.