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Finding the Fourth Proportional to 526,925.94, 790,390.80 and 127,565.94

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Solution

The fourth proportional to 526,925.94, 790,390.80 and 127,565.94 is: 191,349.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,925.94 : 790,390.80 = 127,565.94 : x
  2. Step 2: Convert to fraction form
    526,925.94/790,390.80 = 127,565.94/x
  3. Step 3: Cross multiply
    526,925.94x = 790,390.80 × 127,565.94
  4. Step 4: Simplify right side
    526,925.94x = 100,826,945,369.35
  5. Step 5: Solve for x
    x = 100,826,945,369.35/526,925.94
  6. Step 6: Final answer
    x = 191,349.37

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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.