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Finding the Fourth Proportional to 76,237.01, 105,207.08 and 42,703.01

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Solution

The fourth proportional to 76,237.01, 105,207.08 and 42,703.01 is: 58,930.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,237.01 : 105,207.08 = 42,703.01 : x
  2. Step 2: Convert to fraction form
    76,237.01/105,207.08 = 42,703.01/x
  3. Step 3: Cross multiply
    76,237.01x = 105,207.08 × 42,703.01
  4. Step 4: Simplify right side
    76,237.01x = 4,492,658,249.76
  5. Step 5: Solve for x
    x = 4,492,658,249.76/76,237.01
  6. Step 6: Final answer
    x = 58,930.15

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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.