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Finding the Fourth Proportional to 93,085.92, 128,461.77 and 50,646.06

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Solution

The fourth proportional to 93,085.92, 128,461.77 and 50,646.06 is: 69,893.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,085.92 : 128,461.77 = 50,646.06 : x
  2. Step 2: Convert to fraction form
    93,085.92/128,461.77 = 50,646.06/x
  3. Step 3: Cross multiply
    93,085.92x = 128,461.77 × 50,646.06
  4. Step 4: Simplify right side
    93,085.92x = 6,506,082,511.13
  5. Step 5: Solve for x
    x = 6,506,082,511.13/93,085.92
  6. Step 6: Final answer
    x = 69,893.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.