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Finding the Fourth Proportional to 153,334.68, 211,601.80 and 85,350.20

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Solution

The fourth proportional to 153,334.68, 211,601.80 and 85,350.20 is: 117,783.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,334.68 : 211,601.80 = 85,350.20 : x
  2. Step 2: Convert to fraction form
    153,334.68/211,601.80 = 85,350.20/x
  3. Step 3: Cross multiply
    153,334.68x = 211,601.80 × 85,350.20
  4. Step 4: Simplify right side
    153,334.68x = 18,060,255,950.36
  5. Step 5: Solve for x
    x = 18,060,255,950.36/153,334.68
  6. Step 6: Final answer
    x = 117,783.24

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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.