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Finding the Fourth Proportional to 113,801.60, 170,896.80 and 61,313.60

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Solution

The fourth proportional to 113,801.60, 170,896.80 and 61,313.60 is: 92,075.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,801.60 : 170,896.80 = 61,313.60 : x
  2. Step 2: Convert to fraction form
    113,801.60/170,896.80 = 61,313.60/x
  3. Step 3: Cross multiply
    113,801.60x = 170,896.80 × 61,313.60
  4. Step 4: Simplify right side
    113,801.60x = 10,478,298,036.48
  5. Step 5: Solve for x
    x = 10,478,298,036.48/113,801.60
  6. Step 6: Final answer
    x = 92,075.14

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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.