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Finding the Fourth Proportional to 93,218, 139,792.92 and 34,036.16

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Solution

The fourth proportional to 93,218, 139,792.92 and 34,036.16 is: 51,041.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,218 : 139,792.92 = 34,036.16 : x
  2. Step 2: Convert to fraction form
    93,218/139,792.92 = 34,036.16/x
  3. Step 3: Cross multiply
    93,218x = 139,792.92 × 34,036.16
  4. Step 4: Simplify right side
    93,218x = 4,758,014,191.99
  5. Step 5: Solve for x
    x = 4,758,014,191.99/93,218
  6. Step 6: Final answer
    x = 51,041.80

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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.