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Finding the Fourth Proportional to 73,642.32, 101,623.60 and 45,009.88

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Solution

The fourth proportional to 73,642.32, 101,623.60 and 45,009.88 is: 62,111.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,642.32 : 101,623.60 = 45,009.88 : x
  2. Step 2: Convert to fraction form
    73,642.32/101,623.60 = 45,009.88/x
  3. Step 3: Cross multiply
    73,642.32x = 101,623.60 × 45,009.88
  4. Step 4: Simplify right side
    73,642.32x = 4,574,066,041.17
  5. Step 5: Solve for x
    x = 4,574,066,041.17/73,642.32
  6. Step 6: Final answer
    x = 62,111.92

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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.