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Finding the Fourth Proportional to 38,973,799.20, 54,652,898.40 and 38,973,799.20

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Solution

The fourth proportional to 38,973,799.20, 54,652,898.40 and 38,973,799.20 is: 54,652,898.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,973,799.20 : 54,652,898.40 = 38,973,799.20 : x
  2. Step 2: Convert to fraction form
    38,973,799.20/54,652,898.40 = 38,973,799.20/x
  3. Step 3: Cross multiply
    38,973,799.20x = 54,652,898.40 × 38,973,799.20
  4. Step 4: Simplify right side
    38,973,799.20x = 2,130,031,087,939,601.50
  5. Step 5: Solve for x
    x = 2,130,031,087,939,601.50/38,973,799.20
  6. Step 6: Final answer
    x = 54,652,898.40

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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.