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Finding the Fourth Proportional to 64,592,662.80, 96,779,314.20 and 38,979,853.20

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Solution

The fourth proportional to 64,592,662.80, 96,779,314.20 and 38,979,853.20 is: 58,403,591.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,592,662.80 : 96,779,314.20 = 38,979,853.20 : x
  2. Step 2: Convert to fraction form
    64,592,662.80/96,779,314.20 = 38,979,853.20/x
  3. Step 3: Cross multiply
    64,592,662.80x = 96,779,314.20 × 38,979,853.20
  4. Step 4: Simplify right side
    64,592,662.80x = 3,772,443,460,312,676
  5. Step 5: Solve for x
    x = 3,772,443,460,312,676/64,592,662.80
  6. Step 6: Final answer
    x = 58,403,591.01

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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.