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Finding the Fourth Proportional to 253,903.48, 350,386.80 and 140,726.24

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Solution

The fourth proportional to 253,903.48, 350,386.80 and 140,726.24 is: 194,202.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,903.48 : 350,386.80 = 140,726.24 : x
  2. Step 2: Convert to fraction form
    253,903.48/350,386.80 = 140,726.24/x
  3. Step 3: Cross multiply
    253,903.48x = 350,386.80 × 140,726.24
  4. Step 4: Simplify right side
    253,903.48x = 49,308,616,909.63
  5. Step 5: Solve for x
    x = 49,308,616,909.63/253,903.48
  6. Step 6: Final answer
    x = 194,202.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.