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Finding the Fourth Proportional to 187,792.86, 259,402.59 and 139,963.17

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Solution

The fourth proportional to 187,792.86, 259,402.59 and 139,963.17 is: 193,334.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,792.86 : 259,402.59 = 139,963.17 : x
  2. Step 2: Convert to fraction form
    187,792.86/259,402.59 = 139,963.17/x
  3. Step 3: Cross multiply
    187,792.86x = 259,402.59 × 139,963.17
  4. Step 4: Simplify right side
    187,792.86x = 36,306,808,802.61
  5. Step 5: Solve for x
    x = 36,306,808,802.61/187,792.86
  6. Step 6: Final answer
    x = 193,334.34

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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.