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Finding the Fourth Proportional to 223,559.04, 308,485.60 and 128,060.04

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Solution

The fourth proportional to 223,559.04, 308,485.60 and 128,060.04 is: 176,708.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,559.04 : 308,485.60 = 128,060.04 : x
  2. Step 2: Convert to fraction form
    223,559.04/308,485.60 = 128,060.04/x
  3. Step 3: Cross multiply
    223,559.04x = 308,485.60 × 128,060.04
  4. Step 4: Simplify right side
    223,559.04x = 39,504,678,275.42
  5. Step 5: Solve for x
    x = 39,504,678,275.42/223,559.04
  6. Step 6: Final answer
    x = 176,708.03

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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.