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Finding the Fourth Proportional to 223,307.95, 308,178.75 and 127,812.46

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Solution

The fourth proportional to 223,307.95, 308,178.75 and 127,812.46 is: 176,389.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,307.95 : 308,178.75 = 127,812.46 : x
  2. Step 2: Convert to fraction form
    223,307.95/308,178.75 = 127,812.46/x
  3. Step 3: Cross multiply
    223,307.95x = 308,178.75 × 127,812.46
  4. Step 4: Simplify right side
    223,307.95x = 39,389,083,866.07
  5. Step 5: Solve for x
    x = 39,389,083,866.07/223,307.95
  6. Step 6: Final answer
    x = 176,389.08

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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.