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Finding the Fourth Proportional to 173,945.40, 260,723.70 and 99,101.40

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Solution

The fourth proportional to 173,945.40, 260,723.70 and 99,101.40 is: 148,541.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,945.40 : 260,723.70 = 99,101.40 : x
  2. Step 2: Convert to fraction form
    173,945.40/260,723.70 = 99,101.40/x
  3. Step 3: Cross multiply
    173,945.40x = 260,723.70 × 99,101.40
  4. Step 4: Simplify right side
    173,945.40x = 25,838,083,683.18
  5. Step 5: Solve for x
    x = 25,838,083,683.18/173,945.40
  6. Step 6: Final answer
    x = 148,541.35

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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.