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Finding the Fourth Proportional to 101,656.58, 140,291.48 and 56,339.52

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Solution

The fourth proportional to 101,656.58, 140,291.48 and 56,339.52 is: 77,751.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,656.58 : 140,291.48 = 56,339.52 : x
  2. Step 2: Convert to fraction form
    101,656.58/140,291.48 = 56,339.52/x
  3. Step 3: Cross multiply
    101,656.58x = 140,291.48 × 56,339.52
  4. Step 4: Simplify right side
    101,656.58x = 7,903,954,643.29
  5. Step 5: Solve for x
    x = 7,903,954,643.29/101,656.58
  6. Step 6: Final answer
    x = 77,751.53

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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.