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Finding the Fourth Proportional to 210,528.80, 316,570.80 and 176,314.40

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Solution

The fourth proportional to 210,528.80, 316,570.80 and 176,314.40 is: 265,122.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,528.80 : 316,570.80 = 176,314.40 : x
  2. Step 2: Convert to fraction form
    210,528.80/316,570.80 = 176,314.40/x
  3. Step 3: Cross multiply
    210,528.80x = 316,570.80 × 176,314.40
  4. Step 4: Simplify right side
    210,528.80x = 55,815,990,659.52
  5. Step 5: Solve for x
    x = 55,815,990,659.52/210,528.80
  6. Step 6: Final answer
    x = 265,122.83

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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.