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Finding the Fourth Proportional to 223,746.63, 308,700.72 and 126,934.47

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Solution

The fourth proportional to 223,746.63, 308,700.72 and 126,934.47 is: 175,130.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,746.63 : 308,700.72 = 126,934.47 : x
  2. Step 2: Convert to fraction form
    223,746.63/308,700.72 = 126,934.47/x
  3. Step 3: Cross multiply
    223,746.63x = 308,700.72 × 126,934.47
  4. Step 4: Simplify right side
    223,746.63x = 39,184,762,281.82
  5. Step 5: Solve for x
    x = 39,184,762,281.82/223,746.63
  6. Step 6: Final answer
    x = 175,130.07

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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.