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Finding the Fourth Proportional to 229,706.95, 316,995.85 and 127,730.22

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Solution

The fourth proportional to 229,706.95, 316,995.85 and 127,730.22 is: 176,267.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,706.95 : 316,995.85 = 127,730.22 : x
  2. Step 2: Convert to fraction form
    229,706.95/316,995.85 = 127,730.22/x
  3. Step 3: Cross multiply
    229,706.95x = 316,995.85 × 127,730.22
  4. Step 4: Simplify right side
    229,706.95x = 40,489,950,051.47
  5. Step 5: Solve for x
    x = 40,489,950,051.47/229,706.95
  6. Step 6: Final answer
    x = 176,267.85

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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.