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Finding the Fourth Proportional to 207,073.02, 285,055.56 and 153,256.62

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Solution

The fourth proportional to 207,073.02, 285,055.56 and 153,256.62 is: 210,972.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,073.02 : 285,055.56 = 153,256.62 : x
  2. Step 2: Convert to fraction form
    207,073.02/285,055.56 = 153,256.62/x
  3. Step 3: Cross multiply
    207,073.02x = 285,055.56 × 153,256.62
  4. Step 4: Simplify right side
    207,073.02x = 43,686,651,637.81
  5. Step 5: Solve for x
    x = 43,686,651,637.81/207,073.02
  6. Step 6: Final answer
    x = 210,972.21

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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.