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Finding the Fourth Proportional to 191,955.51, 287,967.06 and 65,566.17

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Solution

The fourth proportional to 191,955.51, 287,967.06 and 65,566.17 is: 98,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,955.51 : 287,967.06 = 65,566.17 : x
  2. Step 2: Convert to fraction form
    191,955.51/287,967.06 = 65,566.17/x
  3. Step 3: Cross multiply
    191,955.51x = 287,967.06 × 65,566.17
  4. Step 4: Simplify right side
    191,955.51x = 18,880,897,210.36
  5. Step 5: Solve for x
    x = 18,880,897,210.36/191,955.51
  6. Step 6: Final answer
    x = 98,360.80

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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.