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Finding the Fourth Proportional to 115,624.80, 173,264.40 and 97,999.20

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Solution

The fourth proportional to 115,624.80, 173,264.40 and 97,999.20 is: 146,852.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,624.80 : 173,264.40 = 97,999.20 : x
  2. Step 2: Convert to fraction form
    115,624.80/173,264.40 = 97,999.20/x
  3. Step 3: Cross multiply
    115,624.80x = 173,264.40 × 97,999.20
  4. Step 4: Simplify right side
    115,624.80x = 16,979,772,588.48
  5. Step 5: Solve for x
    x = 16,979,772,588.48/115,624.80
  6. Step 6: Final answer
    x = 146,852.34

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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.