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Finding the Fourth Proportional to 93,315.08, 139,979.45 and 39,955.01

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Solution

The fourth proportional to 93,315.08, 139,979.45 and 39,955.01 is: 59,935.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,315.08 : 139,979.45 = 39,955.01 : x
  2. Step 2: Convert to fraction form
    93,315.08/139,979.45 = 39,955.01/x
  3. Step 3: Cross multiply
    93,315.08x = 139,979.45 × 39,955.01
  4. Step 4: Simplify right side
    93,315.08x = 5,592,880,774.38
  5. Step 5: Solve for x
    x = 5,592,880,774.38/93,315.08
  6. Step 6: Final answer
    x = 59,935.44

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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.