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Finding the Fourth Proportional to 255,791.95, 353,017.85 and 191,148.93

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Solution

The fourth proportional to 255,791.95, 353,017.85 and 191,148.93 is: 263,804.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,791.95 : 353,017.85 = 191,148.93 : x
  2. Step 2: Convert to fraction form
    255,791.95/353,017.85 = 191,148.93/x
  3. Step 3: Cross multiply
    255,791.95x = 353,017.85 × 191,148.93
  4. Step 4: Simplify right side
    255,791.95x = 67,478,984,666.47
  5. Step 5: Solve for x
    x = 67,478,984,666.47/255,791.95
  6. Step 6: Final answer
    x = 263,804.17

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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.