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Finding the Fourth Proportional to 223,574.50, 308,536.80 and 121,602.22

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Solution

The fourth proportional to 223,574.50, 308,536.80 and 121,602.22 is: 167,813.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,574.50 : 308,536.80 = 121,602.22 : x
  2. Step 2: Convert to fraction form
    223,574.50/308,536.80 = 121,602.22/x
  3. Step 3: Cross multiply
    223,574.50x = 308,536.80 × 121,602.22
  4. Step 4: Simplify right side
    223,574.50x = 37,518,759,831.70
  5. Step 5: Solve for x
    x = 37,518,759,831.70/223,574.50
  6. Step 6: Final answer
    x = 167,813.23

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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.