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Finding the Fourth Proportional to 517,106.16, 775,636.68 and 162,112.08

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Solution

The fourth proportional to 517,106.16, 775,636.68 and 162,112.08 is: 243,161.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,106.16 : 775,636.68 = 162,112.08 : x
  2. Step 2: Convert to fraction form
    517,106.16/775,636.68 = 162,112.08/x
  3. Step 3: Cross multiply
    517,106.16x = 775,636.68 × 162,112.08
  4. Step 4: Simplify right side
    517,106.16x = 125,740,075,519.09
  5. Step 5: Solve for x
    x = 125,740,075,519.09/517,106.16
  6. Step 6: Final answer
    x = 243,161.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.