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Finding the Fourth Proportional to 223,070.40, 307,831.98 and 127,571.40

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Solution

The fourth proportional to 223,070.40, 307,831.98 and 127,571.40 is: 176,045.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,070.40 : 307,831.98 = 127,571.40 : x
  2. Step 2: Convert to fraction form
    223,070.40/307,831.98 = 127,571.40/x
  3. Step 3: Cross multiply
    223,070.40x = 307,831.98 × 127,571.40
  4. Step 4: Simplify right side
    223,070.40x = 39,270,556,653.37
  5. Step 5: Solve for x
    x = 39,270,556,653.37/223,070.40
  6. Step 6: Final answer
    x = 176,045.57

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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.