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Finding the Fourth Proportional to 163,432.40, 245,206.20 and 157,672.40

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Solution

The fourth proportional to 163,432.40, 245,206.20 and 157,672.40 is: 236,564.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,432.40 : 245,206.20 = 157,672.40 : x
  2. Step 2: Convert to fraction form
    163,432.40/245,206.20 = 157,672.40/x
  3. Step 3: Cross multiply
    163,432.40x = 245,206.20 × 157,672.40
  4. Step 4: Simplify right side
    163,432.40x = 38,662,250,048.88
  5. Step 5: Solve for x
    x = 38,662,250,048.88/163,432.40
  6. Step 6: Final answer
    x = 236,564.17

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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.