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Finding the Fourth Proportional to 118,853.12, 164,014.08 and 68,549.12

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Solution

The fourth proportional to 118,853.12, 164,014.08 and 68,549.12 is: 94,595.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,853.12 : 164,014.08 = 68,549.12 : x
  2. Step 2: Convert to fraction form
    118,853.12/164,014.08 = 68,549.12/x
  3. Step 3: Cross multiply
    118,853.12x = 164,014.08 × 68,549.12
  4. Step 4: Simplify right side
    118,853.12x = 11,243,020,851.61
  5. Step 5: Solve for x
    x = 11,243,020,851.61/118,853.12
  6. Step 6: Final answer
    x = 94,595.93

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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.