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Finding the Fourth Proportional to 92,235.51, 127,261.53 and 56,412.45

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Solution

The fourth proportional to 92,235.51, 127,261.53 and 56,412.45 is: 77,834.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,235.51 : 127,261.53 = 56,412.45 : x
  2. Step 2: Convert to fraction form
    92,235.51/127,261.53 = 56,412.45/x
  3. Step 3: Cross multiply
    92,235.51x = 127,261.53 × 56,412.45
  4. Step 4: Simplify right side
    92,235.51x = 7,179,134,698.05
  5. Step 5: Solve for x
    x = 7,179,134,698.05/92,235.51
  6. Step 6: Final answer
    x = 77,834.82

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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.