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Finding the Fourth Proportional to 215,598.53, 297,366.59 and 158,218.47

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Solution

The fourth proportional to 215,598.53, 297,366.59 and 158,218.47 is: 218,224.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,598.53 : 297,366.59 = 158,218.47 : x
  2. Step 2: Convert to fraction form
    215,598.53/297,366.59 = 158,218.47/x
  3. Step 3: Cross multiply
    215,598.53x = 297,366.59 × 158,218.47
  4. Step 4: Simplify right side
    215,598.53x = 47,048,886,898.92
  5. Step 5: Solve for x
    x = 47,048,886,898.92/215,598.53
  6. Step 6: Final answer
    x = 218,224.53

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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.