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Finding the Fourth Proportional to 64,270.80, 96,503.40 and 49,496.40

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Solution

The fourth proportional to 64,270.80, 96,503.40 and 49,496.40 is: 74,319.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,270.80 : 96,503.40 = 49,496.40 : x
  2. Step 2: Convert to fraction form
    64,270.80/96,503.40 = 49,496.40/x
  3. Step 3: Cross multiply
    64,270.80x = 96,503.40 × 49,496.40
  4. Step 4: Simplify right side
    64,270.80x = 4,776,570,887.76
  5. Step 5: Solve for x
    x = 4,776,570,887.76/64,270.80
  6. Step 6: Final answer
    x = 74,319.46

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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.