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Finding the Fourth Proportional to 612,166.21, 918,248.10 and 162,887.00

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Solution

The fourth proportional to 612,166.21, 918,248.10 and 162,887.00 is: 244,330.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,166.21 : 918,248.10 = 162,887.00 : x
  2. Step 2: Convert to fraction form
    612,166.21/918,248.10 = 162,887.00/x
  3. Step 3: Cross multiply
    612,166.21x = 918,248.10 × 162,887.00
  4. Step 4: Simplify right side
    612,166.21x = 149,570,678,227.78
  5. Step 5: Solve for x
    x = 149,570,678,227.78/612,166.21
  6. Step 6: Final answer
    x = 244,330.18

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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.