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Finding the Fourth Proportional to 202,763.19, 279,810.28 and 112,117.16

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Solution

The fourth proportional to 202,763.19, 279,810.28 and 112,117.16 is: 154,720.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,763.19 : 279,810.28 = 112,117.16 : x
  2. Step 2: Convert to fraction form
    202,763.19/279,810.28 = 112,117.16/x
  3. Step 3: Cross multiply
    202,763.19x = 279,810.28 × 112,117.16
  4. Step 4: Simplify right side
    202,763.19x = 31,371,534,351.64
  5. Step 5: Solve for x
    x = 31,371,534,351.64/202,763.19
  6. Step 6: Final answer
    x = 154,720.07

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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.