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Finding the Fourth Proportional to 105,762.50, 145,949.58 and 60,437.60

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Solution

The fourth proportional to 105,762.50, 145,949.58 and 60,437.60 is: 83,402.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,762.50 : 145,949.58 = 60,437.60 : x
  2. Step 2: Convert to fraction form
    105,762.50/145,949.58 = 60,437.60/x
  3. Step 3: Cross multiply
    105,762.50x = 145,949.58 × 60,437.60
  4. Step 4: Simplify right side
    105,762.50x = 8,820,842,336.21
  5. Step 5: Solve for x
    x = 8,820,842,336.21/105,762.50
  6. Step 6: Final answer
    x = 83,402.36

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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.