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Finding the Fourth Proportional to 210,515.80, 316,551.30 and 176,301.40

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Solution

The fourth proportional to 210,515.80, 316,551.30 and 176,301.40 is: 265,103.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,515.80 : 316,551.30 = 176,301.40 : x
  2. Step 2: Convert to fraction form
    210,515.80/316,551.30 = 176,301.40/x
  3. Step 3: Cross multiply
    210,515.80x = 316,551.30 × 176,301.40
  4. Step 4: Simplify right side
    210,515.80x = 55,808,437,361.82
  5. Step 5: Solve for x
    x = 55,808,437,361.82/210,515.80
  6. Step 6: Final answer
    x = 265,103.32

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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.