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Finding the Fourth Proportional to 113,316.90, 170,106.30 and 60,828.90

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Solution

The fourth proportional to 113,316.90, 170,106.30 and 60,828.90 is: 91,313.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,316.90 : 170,106.30 = 60,828.90 : x
  2. Step 2: Convert to fraction form
    113,316.90/170,106.30 = 60,828.90/x
  3. Step 3: Cross multiply
    113,316.90x = 170,106.30 × 60,828.90
  4. Step 4: Simplify right side
    113,316.90x = 10,347,379,112.07
  5. Step 5: Solve for x
    x = 10,347,379,112.07/113,316.90
  6. Step 6: Final answer
    x = 91,313.64

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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.