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Finding the Fourth Proportional to 130,111.59, 179,603.54 and 84,800.59

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Solution

The fourth proportional to 130,111.59, 179,603.54 and 84,800.59 is: 117,057.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,111.59 : 179,603.54 = 84,800.59 : x
  2. Step 2: Convert to fraction form
    130,111.59/179,603.54 = 84,800.59/x
  3. Step 3: Cross multiply
    130,111.59x = 179,603.54 × 84,800.59
  4. Step 4: Simplify right side
    130,111.59x = 15,230,486,158.09
  5. Step 5: Solve for x
    x = 15,230,486,158.09/130,111.59
  6. Step 6: Final answer
    x = 117,057.11

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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.