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Finding the Fourth Proportional to 140,533.08, 210,799.98 and 57,427.08

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Solution

The fourth proportional to 140,533.08, 210,799.98 and 57,427.08 is: 86,140.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,533.08 : 210,799.98 = 57,427.08 : x
  2. Step 2: Convert to fraction form
    140,533.08/210,799.98 = 57,427.08/x
  3. Step 3: Cross multiply
    140,533.08x = 210,799.98 × 57,427.08
  4. Step 4: Simplify right side
    140,533.08x = 12,105,627,315.46
  5. Step 5: Solve for x
    x = 12,105,627,315.46/140,533.08
  6. Step 6: Final answer
    x = 86,140.77

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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.