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Finding the Fourth Proportional to 153,447.36, 211,816.80 and 119,924.16

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Solution

The fourth proportional to 153,447.36, 211,816.80 and 119,924.16 is: 165,541.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,447.36 : 211,816.80 = 119,924.16 : x
  2. Step 2: Convert to fraction form
    153,447.36/211,816.80 = 119,924.16/x
  3. Step 3: Cross multiply
    153,447.36x = 211,816.80 × 119,924.16
  4. Step 4: Simplify right side
    153,447.36x = 25,401,951,813.89
  5. Step 5: Solve for x
    x = 25,401,951,813.89/153,447.36
  6. Step 6: Final answer
    x = 165,541.80

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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.