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Finding the Fourth Proportional to 352,670.93, 528,776.35 and 127,988.81

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Solution

The fourth proportional to 352,670.93, 528,776.35 and 127,988.81 is: 191,899.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,670.93 : 528,776.35 = 127,988.81 : x
  2. Step 2: Convert to fraction form
    352,670.93/528,776.35 = 127,988.81/x
  3. Step 3: Cross multiply
    352,670.93x = 528,776.35 × 127,988.81
  4. Step 4: Simplify right side
    352,670.93x = 67,677,455,792.64
  5. Step 5: Solve for x
    x = 67,677,455,792.64/352,670.93
  6. Step 6: Final answer
    x = 191,899.73

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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.