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Finding the Fourth Proportional to 93,116.79, 139,746.47 and 66,097.22

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Solution

The fourth proportional to 93,116.79, 139,746.47 and 66,097.22 is: 99,196.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,116.79 : 139,746.47 = 66,097.22 : x
  2. Step 2: Convert to fraction form
    93,116.79/139,746.47 = 66,097.22/x
  3. Step 3: Cross multiply
    93,116.79x = 139,746.47 × 66,097.22
  4. Step 4: Simplify right side
    93,116.79x = 9,236,852,142.59
  5. Step 5: Solve for x
    x = 9,236,852,142.59/93,116.79
  6. Step 6: Final answer
    x = 99,196.42

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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.