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Finding the Fourth Proportional to 188,501.04, 260,134.68 and 103,621.68

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Solution

The fourth proportional to 188,501.04, 260,134.68 and 103,621.68 is: 142,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,501.04 : 260,134.68 = 103,621.68 : x
  2. Step 2: Convert to fraction form
    188,501.04/260,134.68 = 103,621.68/x
  3. Step 3: Cross multiply
    188,501.04x = 260,134.68 × 103,621.68
  4. Step 4: Simplify right side
    188,501.04x = 26,955,592,567.86
  5. Step 5: Solve for x
    x = 26,955,592,567.86/188,501.04
  6. Step 6: Final answer
    x = 142,999.70

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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.