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Finding the Fourth Proportional to 313,393.16, 432,482.54 and 170,153.22

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Solution

The fourth proportional to 313,393.16, 432,482.54 and 170,153.22 is: 234,811.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,393.16 : 432,482.54 = 170,153.22 : x
  2. Step 2: Convert to fraction form
    313,393.16/432,482.54 = 170,153.22/x
  3. Step 3: Cross multiply
    313,393.16x = 432,482.54 × 170,153.22
  4. Step 4: Simplify right side
    313,393.16x = 73,588,295,924.01
  5. Step 5: Solve for x
    x = 73,588,295,924.01/313,393.16
  6. Step 6: Final answer
    x = 234,811.43

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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.