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Finding the Fourth Proportional to 183,903.40, 253,806.78 and 112,283.20

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Solution

The fourth proportional to 183,903.40, 253,806.78 and 112,283.20 is: 154,963.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,903.40 : 253,806.78 = 112,283.20 : x
  2. Step 2: Convert to fraction form
    183,903.40/253,806.78 = 112,283.20/x
  3. Step 3: Cross multiply
    183,903.40x = 253,806.78 × 112,283.20
  4. Step 4: Simplify right side
    183,903.40x = 28,498,237,440.10
  5. Step 5: Solve for x
    x = 28,498,237,440.10/183,903.40
  6. Step 6: Final answer
    x = 154,963.08

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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.