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Finding the Fourth Proportional to 64,655,152.10, 96,982,728.15 and 57,640,130.90

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Solution

The fourth proportional to 64,655,152.10, 96,982,728.15 and 57,640,130.90 is: 86,460,196.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,655,152.10 : 96,982,728.15 = 57,640,130.90 : x
  2. Step 2: Convert to fraction form
    64,655,152.10/96,982,728.15 = 57,640,130.90/x
  3. Step 3: Cross multiply
    64,655,152.10x = 96,982,728.15 × 57,640,130.90
  4. Step 4: Simplify right side
    64,655,152.10x = 5,590,097,145,605,115
  5. Step 5: Solve for x
    x = 5,590,097,145,605,115/64,655,152.10
  6. Step 6: Final answer
    x = 86,460,196.35

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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.