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Finding the Fourth Proportional to 70,345.95, 105,548.90 and 46,661.76

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Solution

The fourth proportional to 70,345.95, 105,548.90 and 46,661.76 is: 70,012.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,345.95 : 105,548.90 = 46,661.76 : x
  2. Step 2: Convert to fraction form
    70,345.95/105,548.90 = 46,661.76/x
  3. Step 3: Cross multiply
    70,345.95x = 105,548.90 × 46,661.76
  4. Step 4: Simplify right side
    70,345.95x = 4,925,097,556.72
  5. Step 5: Solve for x
    x = 4,925,097,556.72/70,345.95
  6. Step 6: Final answer
    x = 70,012.52

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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.