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Finding the Fourth Proportional to 93,312.90, 139,969.35 and 63,375.30

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Solution

The fourth proportional to 93,312.90, 139,969.35 and 63,375.30 is: 95,062.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312.90 : 139,969.35 = 63,375.30 : x
  2. Step 2: Convert to fraction form
    93,312.90/139,969.35 = 63,375.30/x
  3. Step 3: Cross multiply
    93,312.90x = 139,969.35 × 63,375.30
  4. Step 4: Simplify right side
    93,312.90x = 8,870,599,547.06
  5. Step 5: Solve for x
    x = 8,870,599,547.06/93,312.90
  6. Step 6: Final answer
    x = 95,062.95

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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.