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Finding the Fourth Proportional to 177,603.40, 265,967.70 and 83,999.80

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Solution

The fourth proportional to 177,603.40, 265,967.70 and 83,999.80 is: 125,792.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,603.40 : 265,967.70 = 83,999.80 : x
  2. Step 2: Convert to fraction form
    177,603.40/265,967.70 = 83,999.80/x
  3. Step 3: Cross multiply
    177,603.40x = 265,967.70 × 83,999.80
  4. Step 4: Simplify right side
    177,603.40x = 22,341,233,606.46
  5. Step 5: Solve for x
    x = 22,341,233,606.46/177,603.40
  6. Step 6: Final answer
    x = 125,792.83

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1.5x scale

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.