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Finding the Fourth Proportional to 70,506.58, 105,596.92 and 42,364.56

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Solution

The fourth proportional to 70,506.58, 105,596.92 and 42,364.56 is: 63,448.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,506.58 : 105,596.92 = 42,364.56 : x
  2. Step 2: Convert to fraction form
    70,506.58/105,596.92 = 42,364.56/x
  3. Step 3: Cross multiply
    70,506.58x = 105,596.92 × 42,364.56
  4. Step 4: Simplify right side
    70,506.58x = 4,473,567,053.16
  5. Step 5: Solve for x
    x = 4,473,567,053.16/70,506.58
  6. Step 6: Final answer
    x = 63,448.93

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1.5x scale

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.