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Finding the Fourth Proportional to 52,328,391.48, 78,486,608.04 and 13,992,895.08

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Solution

The fourth proportional to 52,328,391.48, 78,486,608.04 and 13,992,895.08 is: 20,987,743.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,328,391.48 : 78,486,608.04 = 13,992,895.08 : x
  2. Step 2: Convert to fraction form
    52,328,391.48/78,486,608.04 = 13,992,895.08/x
  3. Step 3: Cross multiply
    52,328,391.48x = 78,486,608.04 × 13,992,895.08
  4. Step 4: Simplify right side
    52,328,391.48x = 1,098,254,871,488,804.50
  5. Step 5: Solve for x
    x = 1,098,254,871,488,804.50/52,328,391.48
  6. Step 6: Final answer
    x = 20,987,743.75

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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.