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Finding the Fourth Proportional to 70,435.32, 105,784.60 and 62,004.84

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Solution

The fourth proportional to 70,435.32, 105,784.60 and 62,004.84 is: 93,123.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,435.32 : 105,784.60 = 62,004.84 : x
  2. Step 2: Convert to fraction form
    70,435.32/105,784.60 = 62,004.84/x
  3. Step 3: Cross multiply
    70,435.32x = 105,784.60 × 62,004.84
  4. Step 4: Simplify right side
    70,435.32x = 6,559,157,197.46
  5. Step 5: Solve for x
    x = 6,559,157,197.46/70,435.32
  6. Step 6: Final answer
    x = 93,123.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.