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Finding the Fourth Proportional to 292,898.72, 439,350.42 and 191,782.01

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Solution

The fourth proportional to 292,898.72, 439,350.42 and 191,782.01 is: 287,674.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,898.72 : 439,350.42 = 191,782.01 : x
  2. Step 2: Convert to fraction form
    292,898.72/439,350.42 = 191,782.01/x
  3. Step 3: Cross multiply
    292,898.72x = 439,350.42 × 191,782.01
  4. Step 4: Simplify right side
    292,898.72x = 84,259,506,641.94
  5. Step 5: Solve for x
    x = 84,259,506,641.94/292,898.72
  6. Step 6: Final answer
    x = 287,674.55

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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.