Finding the Fourth Proportional to 97,176,590.18, 133,389,866.33 and 85,916,683.99
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Solution
The fourth proportional to 97,176,590.18, 133,389,866.33 and 85,916,683.99 is: 117,933,907.45
Step by Step Solution
- Step 1: Write the proportion equation
97,176,590.18 : 133,389,866.33 = 85,916,683.99 : x - Step 2: Convert to fraction form
97,176,590.18/133,389,866.33 = 85,916,683.99/x - Step 3: Cross multiply
97,176,590.18x = 133,389,866.33 × 85,916,683.99 - Step 4: Simplify right side
97,176,590.18x = 11,460,414,992,341,416 - Step 5: Solve for x
x = 11,460,414,992,341,416/97,176,590.18 - Step 6: Final answer
x = 117,933,907.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.