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Finding the Fourth Proportional to 76,742.19, 105,904.08 and 44,917.11

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Solution

The fourth proportional to 76,742.19, 105,904.08 and 44,917.11 is: 61,985.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,742.19 : 105,904.08 = 44,917.11 : x
  2. Step 2: Convert to fraction form
    76,742.19/105,904.08 = 44,917.11/x
  3. Step 3: Cross multiply
    76,742.19x = 105,904.08 × 44,917.11
  4. Step 4: Simplify right side
    76,742.19x = 4,756,905,210.81
  5. Step 5: Solve for x
    x = 4,756,905,210.81/76,742.19
  6. Step 6: Final answer
    x = 61,985.53

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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.