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Finding the Fourth Proportional to 162,707.40, 218,955.15 and 162,707.40

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Solution

The fourth proportional to 162,707.40, 218,955.15 and 162,707.40 is: 218,955.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,707.40 : 218,955.15 = 162,707.40 : x
  2. Step 2: Convert to fraction form
    162,707.40/218,955.15 = 162,707.40/x
  3. Step 3: Cross multiply
    162,707.40x = 218,955.15 × 162,707.40
  4. Step 4: Simplify right side
    162,707.40x = 35,625,623,173.11
  5. Step 5: Solve for x
    x = 35,625,623,173.11/162,707.40
  6. Step 6: Final answer
    x = 218,955.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.