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Finding the Fourth Proportional to 64,457,699.60, 96,686,549.40 and 49,845,040.40

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Solution

The fourth proportional to 64,457,699.60, 96,686,549.40 and 49,845,040.40 is: 74,767,560.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,457,699.60 : 96,686,549.40 = 49,845,040.40 : x
  2. Step 2: Convert to fraction form
    64,457,699.60/96,686,549.40 = 49,845,040.40/x
  3. Step 3: Cross multiply
    64,457,699.60x = 96,686,549.40 × 49,845,040.40
  4. Step 4: Simplify right side
    64,457,699.60x = 4,819,344,960,979,596
  5. Step 5: Solve for x
    x = 4,819,344,960,979,596/64,457,699.60
  6. Step 6: Final answer
    x = 74,767,560.60

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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.