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Finding the Fourth Proportional to 292,898.03, 439,347.04 and 105,865.79

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Solution

The fourth proportional to 292,898.03, 439,347.04 and 105,865.79 is: 158,798.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,898.03 : 439,347.04 = 105,865.79 : x
  2. Step 2: Convert to fraction form
    292,898.03/439,347.04 = 105,865.79/x
  3. Step 3: Cross multiply
    292,898.03x = 439,347.04 × 105,865.79
  4. Step 4: Simplify right side
    292,898.03x = 46,511,819,012.36
  5. Step 5: Solve for x
    x = 46,511,819,012.36/292,898.03
  6. Step 6: Final answer
    x = 158,798.68

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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.