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Finding the Fourth Proportional to 93,312.90, 139,969.35 and 67,068.90

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Solution

The fourth proportional to 93,312.90, 139,969.35 and 67,068.90 is: 100,603.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312.90 : 139,969.35 = 67,068.90 : x
  2. Step 2: Convert to fraction form
    93,312.90/139,969.35 = 67,068.90/x
  3. Step 3: Cross multiply
    93,312.90x = 139,969.35 × 67,068.90
  4. Step 4: Simplify right side
    93,312.90x = 9,387,590,338.22
  5. Step 5: Solve for x
    x = 9,387,590,338.22/93,312.90
  6. Step 6: Final answer
    x = 100,603.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.