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Finding the Fourth Proportional to 499,950.86, 749,931.15 and 125,973.86

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Solution

The fourth proportional to 499,950.86, 749,931.15 and 125,973.86 is: 188,962.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,950.86 : 749,931.15 = 125,973.86 : x
  2. Step 2: Convert to fraction form
    499,950.86/749,931.15 = 125,973.86/x
  3. Step 3: Cross multiply
    499,950.86x = 749,931.15 × 125,973.86
  4. Step 4: Simplify right side
    499,950.86x = 94,471,721,699.74
  5. Step 5: Solve for x
    x = 94,471,721,699.74/499,950.86
  6. Step 6: Final answer
    x = 188,962.01

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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.