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Finding the Fourth Proportional to 173,911.60, 260,521.80 and 99,953.20

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Solution

The fourth proportional to 173,911.60, 260,521.80 and 99,953.20 is: 149,731.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,911.60 : 260,521.80 = 99,953.20 : x
  2. Step 2: Convert to fraction form
    173,911.60/260,521.80 = 99,953.20/x
  3. Step 3: Cross multiply
    173,911.60x = 260,521.80 × 99,953.20
  4. Step 4: Simplify right side
    173,911.60x = 26,039,987,579.76
  5. Step 5: Solve for x
    x = 26,039,987,579.76/173,911.60
  6. Step 6: Final answer
    x = 149,731.17

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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.