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Finding the Fourth Proportional to 210,526.80, 316,567.80 and 176,312.40

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Solution

The fourth proportional to 210,526.80, 316,567.80 and 176,312.40 is: 265,119.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,526.80 : 316,567.80 = 176,312.40 : x
  2. Step 2: Convert to fraction form
    210,526.80/316,567.80 = 176,312.40/x
  3. Step 3: Cross multiply
    210,526.80x = 316,567.80 × 176,312.40
  4. Step 4: Simplify right side
    210,526.80x = 55,814,828,580.72
  5. Step 5: Solve for x
    x = 55,814,828,580.72/210,526.80
  6. Step 6: Final answer
    x = 265,119.83

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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.