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Finding the Fourth Proportional to 169,869.30, 254,803.95 and 43,509.30

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Solution

The fourth proportional to 169,869.30, 254,803.95 and 43,509.30 is: 65,263.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,869.30 : 254,803.95 = 43,509.30 : x
  2. Step 2: Convert to fraction form
    169,869.30/254,803.95 = 43,509.30/x
  3. Step 3: Cross multiply
    169,869.30x = 254,803.95 × 43,509.30
  4. Step 4: Simplify right side
    169,869.30x = 11,086,341,501.74
  5. Step 5: Solve for x
    x = 11,086,341,501.74/169,869.30
  6. Step 6: Final answer
    x = 65,263.95

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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.