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Finding the Fourth Proportional to 105,295.56, 145,307.52 and 57,548.88

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Solution

The fourth proportional to 105,295.56, 145,307.52 and 57,548.88 is: 79,417.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,295.56 : 145,307.52 = 57,548.88 : x
  2. Step 2: Convert to fraction form
    105,295.56/145,307.52 = 57,548.88/x
  3. Step 3: Cross multiply
    105,295.56x = 145,307.52 × 57,548.88
  4. Step 4: Simplify right side
    105,295.56x = 8,362,285,031.58
  5. Step 5: Solve for x
    x = 8,362,285,031.58/105,295.56
  6. Step 6: Final answer
    x = 79,417.26

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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.