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Finding the Fourth Proportional to 207,572.34, 310,221.23 and 151,530.46

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Solution

The fourth proportional to 207,572.34, 310,221.23 and 151,530.46 is: 226,465.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,572.34 : 310,221.23 = 151,530.46 : x
  2. Step 2: Convert to fraction form
    207,572.34/310,221.23 = 151,530.46/x
  3. Step 3: Cross multiply
    207,572.34x = 310,221.23 × 151,530.46
  4. Step 4: Simplify right side
    207,572.34x = 47,007,967,173.99
  5. Step 5: Solve for x
    x = 47,007,967,173.99/207,572.34
  6. Step 6: Final answer
    x = 226,465.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.