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Finding the Fourth Proportional to 147,597.32, 203,663.76 and 83,928.08

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Solution

The fourth proportional to 147,597.32, 203,663.76 and 83,928.08 is: 115,809.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,597.32 : 203,663.76 = 83,928.08 : x
  2. Step 2: Convert to fraction form
    147,597.32/203,663.76 = 83,928.08/x
  3. Step 3: Cross multiply
    147,597.32x = 203,663.76 × 83,928.08
  4. Step 4: Simplify right side
    147,597.32x = 17,093,108,342.38
  5. Step 5: Solve for x
    x = 17,093,108,342.38/147,597.32
  6. Step 6: Final answer
    x = 115,809.07

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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.