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Finding the Fourth Proportional to 526,369.59, 789,547.05 and 127,007.01

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Solution

The fourth proportional to 526,369.59, 789,547.05 and 127,007.01 is: 190,508.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,369.59 : 789,547.05 = 127,007.01 : x
  2. Step 2: Convert to fraction form
    526,369.59/789,547.05 = 127,007.01/x
  3. Step 3: Cross multiply
    526,369.59x = 789,547.05 × 127,007.01
  4. Step 4: Simplify right side
    526,369.59x = 100,278,010,074.82
  5. Step 5: Solve for x
    x = 100,278,010,074.82/526,369.59
  6. Step 6: Final answer
    x = 190,508.75

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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.