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Finding the Fourth Proportional to 77,232.39, 106,525.66 and 70,879.50

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Solution

The fourth proportional to 77,232.39, 106,525.66 and 70,879.50 is: 97,763.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,232.39 : 106,525.66 = 70,879.50 : x
  2. Step 2: Convert to fraction form
    77,232.39/106,525.66 = 70,879.50/x
  3. Step 3: Cross multiply
    77,232.39x = 106,525.66 × 70,879.50
  4. Step 4: Simplify right side
    77,232.39x = 7,550,484,985.34
  5. Step 5: Solve for x
    x = 7,550,484,985.34/77,232.39
  6. Step 6: Final answer
    x = 97,763.19

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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.