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Finding the Fourth Proportional to 127,970.55, 191,992.71 and 39,237.14

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Solution

The fourth proportional to 127,970.55, 191,992.71 and 39,237.14 is: 58,867.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,970.55 : 191,992.71 = 39,237.14 : x
  2. Step 2: Convert to fraction form
    127,970.55/191,992.71 = 39,237.14/x
  3. Step 3: Cross multiply
    127,970.55x = 191,992.71 × 39,237.14
  4. Step 4: Simplify right side
    127,970.55x = 7,533,243,881.29
  5. Step 5: Solve for x
    x = 7,533,243,881.29/127,970.55
  6. Step 6: Final answer
    x = 58,867.01

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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.