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Finding the Fourth Proportional to 210,527.80, 316,569.30 and 176,313.40

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Solution

The fourth proportional to 210,527.80, 316,569.30 and 176,313.40 is: 265,121.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,527.80 : 316,569.30 = 176,313.40 : x
  2. Step 2: Convert to fraction form
    210,527.80/316,569.30 = 176,313.40/x
  3. Step 3: Cross multiply
    210,527.80x = 316,569.30 × 176,313.40
  4. Step 4: Simplify right side
    210,527.80x = 55,815,409,618.62
  5. Step 5: Solve for x
    x = 55,815,409,618.62/210,527.80
  6. Step 6: Final answer
    x = 265,121.33

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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.