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Finding the Fourth Proportional to 216,018.48, 298,098.54 and 117,897.96

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Solution

The fourth proportional to 216,018.48, 298,098.54 and 117,897.96 is: 162,695.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,018.48 : 298,098.54 = 117,897.96 : x
  2. Step 2: Convert to fraction form
    216,018.48/298,098.54 = 117,897.96/x
  3. Step 3: Cross multiply
    216,018.48x = 298,098.54 × 117,897.96
  4. Step 4: Simplify right side
    216,018.48x = 35,145,209,744.98
  5. Step 5: Solve for x
    x = 35,145,209,744.98/216,018.48
  6. Step 6: Final answer
    x = 162,695.38

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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.