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Finding the Fourth Proportional to 93,239.58, 139,723.29 and 46,428.06

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Solution

The fourth proportional to 93,239.58, 139,723.29 and 46,428.06 is: 69,574.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,239.58 : 139,723.29 = 46,428.06 : x
  2. Step 2: Convert to fraction form
    93,239.58/139,723.29 = 46,428.06/x
  3. Step 3: Cross multiply
    93,239.58x = 139,723.29 × 46,428.06
  4. Step 4: Simplify right side
    93,239.58x = 6,487,081,291.52
  5. Step 5: Solve for x
    x = 6,487,081,291.52/93,239.58
  6. Step 6: Final answer
    x = 69,574.33

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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.