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Finding the Fourth Proportional to 163,685.70, 245,528.55 and 144,002.70

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Solution

The fourth proportional to 163,685.70, 245,528.55 and 144,002.70 is: 216,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,685.70 : 245,528.55 = 144,002.70 : x
  2. Step 2: Convert to fraction form
    163,685.70/245,528.55 = 144,002.70/x
  3. Step 3: Cross multiply
    163,685.70x = 245,528.55 × 144,002.70
  4. Step 4: Simplify right side
    163,685.70x = 35,356,774,127.09
  5. Step 5: Solve for x
    x = 35,356,774,127.09/163,685.70
  6. Step 6: Final answer
    x = 216,004.05

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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.